FIELD: aeronautical engineering; main rotors of single-rotor helicopters, main rotors of side-by-side helicopters, upper main rotors of coaxial and tandem-rotor helicopters.
SUBSTANCE: proposed main rotor of helicopter includes V-shaped torsion bars, lag hinges and elastic members which are made at flexural rigidity in plane of rotation stipulated by ratio minimizing the moments in plane of rotation in lag hinge of main rotor.
EFFECT: reduction of moment in plane of rotation in lag hinge; enhanced reliability of rotor.
1 dwg
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